group.of.nepali.translators team mailing list archive

[Launchpad Bug Tracker <1793451@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux - 4.4.0-140.166

---------------
linux (4.4.0-140.166) xenial; urgency=medium

  * linux: 4.4.0-140.166 -proposed tracker (LP: #1802776)

  * Bypass of mount visibility through userns + mount propagation (LP: #1789161)
    - mount: Retest MNT_LOCKED in do_umount
    - mount: Don't allow copying MNT_UNBINDABLE|MNT_LOCKED mounts

  * kdump fail due to an IRQ storm (LP: #1797990)
    - SAUCE: x86/PCI: Export find_cap() to be used in early PCI code
    - SAUCE: x86/quirks: Add parameter to clear MSIs early on boot
    - SAUCE: x86/quirks: Scan all busses for early PCI quirks

  * crash in ENA driver on removing an interface (LP: #1802341)
    - SAUCE: net: ena: fix crash during ena_remove()

  * xenial guest on arm64 drops to busybox under openstack bionic-rocky
    (LP: #1797092)
    - [Config] CONFIG_PCI_ECAM=y
    - PCI: Provide common functions for ECAM mapping
    - PCI: generic, thunder: Use generic ECAM API
    - PCI, of: Move PCI I/O space management to PCI core code
    - PCI: Move ecam.h to linux/include/pci-ecam.h
    - PCI: Add parent device field to ECAM struct pci_config_window
    - PCI: Add pci_unmap_iospace() to unmap I/O resources
    - PCI/ACPI: Support I/O resources when parsing host bridge resources
    - [Config] CONFIG_ACPI_MCFG=y
    - PCI/ACPI: Add generic MCFG table handling
    - PCI: Refactor pci_bus_assign_domain_nr() for CONFIG_PCI_DOMAINS_GENERIC
    - PCI: Factor DT-specific pci_bus_find_domain_nr() code out
    - ARM64: PCI: Add acpi_pci_bus_find_domain_nr()
    - ARM64: PCI: ACPI support for legacy IRQs parsing and consolidation with DT
      code
    - ARM64: PCI: Support ACPI-based PCI host controller

  * [GLK/CLX] Enhanced IBRS (LP: #1786139)
    - x86/speculation: Remove SPECTRE_V2_IBRS in enum spectre_v2_mitigation
    - x86/speculation: Support Enhanced IBRS on future CPUs

  * Update ENA driver to version 2.0.1K (LP: #1798182)
    - net: ena: remove ndo_poll_controller
    - net: ena: fix warning in rmmod caused by double iounmap
    - net: ena: fix rare bug when failed restart/resume is followed by driver
      removal
    - net: ena: fix NULL dereference due to untimely napi initialization
    - net: ena: fix auto casting to boolean
    - net: ena: minor performance improvement
    - net: ena: complete host info to match latest ENA spec
    - net: ena: introduce Low Latency Queues data structures according to ENA spec
    - net: ena: add functions for handling Low Latency Queues in ena_com
    - net: ena: add functions for handling Low Latency Queues in ena_netdev
    - net: ena: use CSUM_CHECKED device indication to report skb's checksum status
    - net: ena: explicit casting and initialization, and clearer error handling
    - net: ena: limit refill Rx threshold to 256 to avoid latency issues
    - net: ena: change rx copybreak default to reduce kernel memory pressure
    - net: ena: remove redundant parameter in ena_com_admin_init()
    - net: ena: update driver version to 2.0.1
    - net: ena: fix indentations in ena_defs for better readability
    - net: ena: Fix Kconfig dependency on X86
    - net: ena: enable Low Latency Queues
    - net: ena: fix compilation error in xtensa architecture

  * Xenial update: 4.4.162 upstream stable release (LP: #1801900)
    - ASoC: wm8804: Add ACPI support
    - ASoC: sigmadsp: safeload should not have lower byte limit
    - selftests/efivarfs: add required kernel configs
    - mfd: omap-usb-host: Fix dts probe of children
    - sound: enable interrupt after dma buffer initialization
    - stmmac: fix valid numbers of unicast filter entries
    - net: macb: disable scatter-gather for macb on sama5d3
    - ARM: dts: at91: add new compatibility string for macb on sama5d3
    - drm/amdgpu: Fix SDMA HQD destroy error on gfx_v7
    - ext4: add corruption check in ext4_xattr_set_entry()
    - mm/vmstat.c: fix outdated vmstat_text
    - mach64: detect the dot clock divider correctly on sparc
    - perf script python: Fix export-to-postgresql.py occasional failure
    - i2c: i2c-scmi: fix for i2c_smbus_write_block_data
    - xhci: Don't print a warning when setting link state for disabled ports
    - jffs2: return -ERANGE when xattr buffer is too small
    - bnxt_en: Fix TX timeout during netpoll.
    - bonding: avoid possible dead-lock
    - ip6_tunnel: be careful when accessing the inner header
    - ip_tunnel: be careful when accessing the inner header
    - ipv4: fix use-after-free in ip_cmsg_recv_dstaddr()
    - net: ipv4: update fnhe_pmtu when first hop's MTU changes
    - net/ipv6: Display all addresses in output of /proc/net/if_inet6
    - netlabel: check for IPV4MASK in addrinfo_get
    - net/usb: cancel pending work when unbinding smsc75xx
    - qlcnic: fix Tx descriptor corruption on 82xx devices
    - team: Forbid enslaving team device to itself
    - net: mvpp2: Extract the correct ethtype from the skb for tx csum offload
    - net: systemport: Fix wake-up interrupt race during resume
    - rtnl: limit IFLA_NUM_TX_QUEUES and IFLA_NUM_RX_QUEUES to 4096
    - KVM: x86: remove eager_fpu field of struct kvm_vcpu_arch
    - x86/fpu: Remove use_eager_fpu()
    - x86/fpu: Remove struct fpu::counter
    - x86/fpu: Finish excising 'eagerfpu'
    - media: af9035: prevent buffer overflow on write
    - clocksource/drivers/ti-32k: Add CLOCK_SOURCE_SUSPEND_NONSTOP flag for non-
      am43 SoCs
    - Input: atakbd - fix Atari keymap
    - Input: atakbd - fix Atari CapsLock behaviour
    - net/mlx4: Use cpumask_available for eq->affinity_mask
    - powerpc/tm: Fix userspace r13 corruption
    - powerpc/tm: Avoid possible userspace r1 corruption on reclaim
    - ARC: build: Get rid of toolchain check
    - usb: gadget: serial: fix oops when data rx'd after close
    - HV: properly delay KVP packets when negotiation is in progress
    - Linux 4.4.162

  * Xenial update: 4.4.161 upstream stable release (LP: #1801893)
    - mm/vmstat.c: skip NR_TLB_REMOTE_FLUSH* properly
    - fbdev/omapfb: fix omapfb_memory_read infoleak
    - x86/vdso: Fix asm constraints on vDSO syscall fallbacks
    - x86/vdso: Fix vDSO syscall fallback asm constraint regression
    - PCI: Reprogram bridge prefetch registers on resume
    - mac80211: fix setting IEEE80211_KEY_FLAG_RX_MGMT for AP mode keys
    - PM / core: Clear the direct_complete flag on errors
    - dm cache: fix resize crash if user doesn't reload cache table
    - xhci: Add missing CAS workaround for Intel Sunrise Point xHCI
    - USB: serial: simple: add Motorola Tetra MTP6550 id
    - of: unittest: Disable interrupt node tests for old world MAC systems
    - ext4: always verify the magic number in xattr blocks
    - cgroup: Fix deadlock in cpu hotplug path
    - ath10k: fix use-after-free in ath10k_wmi_cmd_send_nowait
    - ARC: clone syscall to setp r25 as thread pointer
    - ucma: fix a use-after-free in ucma_resolve_ip()
    - ubifs: Check for name being NULL while mounting
    - tcp: increment sk_drops for dropped rx packets
    - tcp: use an RB tree for ooo receive queue
    - tcp: fix a stale ooo_last_skb after a replace
    - tcp: free batches of packets in tcp_prune_ofo_queue()
    - tcp: call tcp_drop() from tcp_data_queue_ofo()
    - tcp: add tcp_ooo_try_coalesce() helper
    - ath10k: fix scan crash due to incorrect length calculation
    - ebtables: arpreply: Add the standard target sanity check
    - Linux 4.4.161

  * mlock203 test in ubuntu_ltp_syscalls failed with Xenial kernel
    (LP: #1793451)
    - mm: mlock: avoid increase mm->locked_vm on mlock() when already mlock2(,
      MLOCK_ONFAULT)

  * execveat03 in ubuntu_ltp_syscalls failed on X/B (LP: #1786729)
    - cap_inode_getsecurity: use d_find_any_alias() instead of d_find_alias()

  * [Ubuntu] net/af_iucv: fix skb leaks for HiperTransport (LP: #1800639)
    - net/af_iucv: drop inbound packets with invalid flags
    - net/af_iucv: fix skb handling on HiperTransport xmit error

  * NULL pointer dereference at 0000000000000020 when access
    dst_orig->ops->family in function  xfrm_lookup_with_ifid() (LP: #1801878)
    - xfrm: Fix NULL pointer dereference when skb_dst_force clears the dst_entry.

  * [Ubuntu] qeth: Fix potential array overrun in cmd/rc lookup (LP: #1800641)
    - s390: qeth_core_mpc: Use ARRAY_SIZE instead of reimplementing its function
    - s390: qeth: Fix potential array overrun in cmd/rc lookup

  * Packaging resync (LP: #1786013)
    - [Package] add support for specifying the primary makefile

 -- Khalid Elmously <khalid.elmously@xxxxxxxxxxxxx>  Tue, 13 Nov 2018
16:55:46 -0500

** Changed in: linux (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

-- 
You received this bug notification because you are a member of नेपाली
भाषा समायोजकहरुको समूह, which is subscribed to Xenial.
Matching subscriptions: Ubuntu 16.04 Bugs
https://bugs.launchpad.net/bugs/1793451

Title:
  mlock203 test in ubuntu_ltp_syscalls failed with Xenial kernel

Status in ubuntu-kernel-tests:
  Fix Released
Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Xenial:
  Fix Released

Bug description:
  == Justification ==
  When one vma was with flag VM_LOCKED|VM_LOCKONFAULT (by invoking
  mlock2(,MLOCK_ONFAULT)), it can again be populated with mlock() with
  VM_LOCKED flag only.

  There is a hole in mlock_fixup() which increase mm->locked_vm twice even
  the two operations are on the same vma and both with VM_LOCKED flags.

  The issue can be reproduced by following code:

    mlock2(p, 1024 * 64, MLOCK_ONFAULT); //VM_LOCKED|VM_LOCKONFAULT
    mlock(p, 1024 * 64);  //VM_LOCKED

  Then check the increase VmLck field in /proc/pid/status(to 128k).

  When vma is set with different vm_flags, and the new vm_flags is with
  VM_LOCKED, it is not necessarily be a "new locked" vma.

  There is a dedicated reproducer, the "mlock203" test in
  ubuntu_ltp_syscalls, you can see the failure for all the Ubuntu 4.4
  kernel:

   <<<test_start>>>
   tag=mlock203 stime=1537369891
   cmdline="mlock203"
   contacts=""
   analysis=exit
   <<<test_output>>>
   tst_test.c:1063: INFO: Timeout per run is 0h 05m 00s
   mlock203.c:63: FAIL: Locking one memory again increased VmLck

   Summary:
   passed   0
   failed   1
   skipped  0
   warnings 0

  == Fix ==
  b155b4fd (mm: mlock: avoid increase mm->locked_vm on mlock() when already mlock2(,MLOCK_ONFAULT))

  A test kernel for Xenial / Xenial-KVM could be found here:
  http://people.canonical.com/~phlin/kernel/lp-1793451-mlock203/

  == Regression Potential ==
  Low, this patch prevents mm->locked_vm from increment just by adding an extra check to see if the old vm_flags is already VM_LOCKED.

  == Test Case ==
  Run the mlock203 test in ubuntu_ltp_syscalls test suite. And it will pass with the patched kernel.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-1068-aws 4.4.0-1068.78
  ProcVersionSignature: User Name 4.4.0-1068.78-aws 4.4.144
  Uname: Linux 4.4.0-1068-aws x86_64
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: amd64
  Date: Thu Sep 20 06:44:13 2018
  Ec2AMI: ami-0e32ec5bc225539f5
  Ec2AMIManifest: (unknown)
  Ec2AvailabilityZone: us-west-2b
  Ec2InstanceType: c3.large
  Ec2Kernel: unavailable
  Ec2Ramdisk: unavailable
  SourcePackage: linux-aws
  UpgradeStatus: No upgrade log present (probably fresh install)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1793451/+subscriptions